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培养学生的数感是《数学课程标准》的一个突出的、重要的目标,也是数与代数学习的核心目标之一。数感是人的一种基本数学素养,是学习数学的重要结构变量,集中表现为:对知识教学的充分感知,对思维训练的快速反应,对个性教养的深刻感受。具有好数感的人对数学情境的反应敏捷、准确, 能用最优化解题策略。数概念教学课就是培养学生数感的好时机。学生对数概念的理解和掌握要经历一个过程,在这个过程中,要让学生更多地接触和经历有关的实例,在现
Cultivating the number sense of students is a prominent and important goal of the Mathematics Curriculum Standards, and it is also one of the core goals of mathematics and algebra learning. Number sense is a basic mathematical quality of human beings. It is an important structural variable for learning mathematics. It is manifested as: full awareness of knowledge teaching, rapid response to thinking training, and profound feelings about personality education. People with a sense of goodness have a quick and accurate response to mathematics situations and can use the optimal problem-solving strategy. The number-concept teaching lesson is a good time to cultivate students’ sense of number. The understanding and mastery of the concept of student logarithm must go through a process. In this process, students should be more exposed to and experience relevant examples.